Car-truck.



, No. 627,900. I Patented luna-27, |899.

(. M. BBILL.

' CAR TRUCK.

(Ap'plcation filed Nov. 9, 1897.)

2 Sheets-Sheet 2.

(No Model.)

i UNITED STATES PATENT QEETCE,

GEORGE MARTIN BRILL, OF PHILADELPHIA, PENNSYLVANIA.

CAR-TRUCK.

SPECIFICATION forming part of Letters Patent N o. 627,900, dated June 27', 1899.

Original application filed July 3, 1897, Serial No. 643,339. Divided and this application iiled November 9,1897. Serial No. n

` 657,970. (No model.)

To all whom, t may concern:

Be it known that I, GEORGE MARTIN BRILL, a citizen of theUnited States, residing at Philadelphia, county of Philadelphia, and State of Pennsylvania,have made certain new and useful Improvements in Car-Trucks, of which the following is a specification.

My invention relates to improvements in car-trucks generally, and especially to trucks employed in passengerservice in connection with electric propulsion; and the subject-matter of this present application relates to that forming part of an application iiled by me on the 3d day of July, 1897, Serial No. 648,389, of which this application is a division.

In the abovestated application, among other things, is recited'means for suspending the truck-bolster, comprising two longitudinally-disposed semi-elliptic springs arched upwardly, the ends of the springs being hung from the side frame by links, which links carry springs eoperating with the links in supporting the semi-elliptic springs from the side frames.

My presentimprovements relate to the eonstruction of thelinks for supporting the semielliptic springs from the truck-frame.

My invention therefore consists in the construction and combination of parts hereinafter described, and further pointed out in the claims.

In the drawings forming part of this speciiication, Figure 1 is a side elevation of a cartruck embodying my improvements; Fig. 2, a plan view thereof; Fig. 3, a transverse sectional elevation, enlarged, through a portion of the side bar of the truck-frame and the link, showing the splayed position of the link while in use; Fig, 4, an enlarged longitudinal sectional elevation of a portion of the truck side frame and the suspending-link.

Similar numerals of reference indicate corresponding parts throughout the several views.

The truck and its associated parts, with the exception of the links,as hereinafter described and claimed, form no part of my present invention, and therefore any suitable form of truck can be employed without departing The one here illustrated, .to which my invention has been employed, comprises the axles 1, wheels 2, axleboXes 3, and a truck-frame comprising side frames 4, made up of the side bars 5, inverted- U-shaped axle-box yokes or pcdestals 6, between which and the axle-boxes rextend axleboX springs 7, the outer legs of the yokes being provided with extensions 8, tied transversely together by an angle-iron cross-bar 9, seated in a recess in the end of said extensions, the legs or arms of the yokes being braced by a cross-bar 10 and by an intermediate pedestal tie-bar 1l, secured to the inner yoke-arms.

The bolster consists of a cross-bar 12, extending transversely of the truck and lying under the side bars 5, and an ihverted archbar 13, lying between transoms 14, extending between brackets l5, formed on the inner side of the bars 5, the cross-bar 12 of the arch-bar resting on a central strap 16, secured to the semi-elliptic springs 17, which latter extend in the same planes as the side bars and lie below them, the end of the cross-bar carrying an upwardly-extending bifurcated yoke 18, forming a support fory the side bearings of the truck, the yoke 18, cross-bar 12, and

springs 17 being secured together by straps 19, passing around the band 16 and through the ends of the bar 12 and flanges 2O at the bottom of the yokes 18.

The foregoing describes a truck illustrate in connection with myinvention recited in the foregoing application, to `which cross-reference is hereby made for more specific' `details. Y

The object of my present invention is to provide efficient means for supporting the semi-elliptic springs, which in their turn support the bolster from vthe side bars of the truck-frame, the bolster tying the springs on each side' of the truck together, so that they can move transversely and longitudinally in unison one with the other, the superposedl yoke 18 embracing the side bar 5 to limit the swing of the bolster land to form, with the side bar, guides for the up-and-down movement of the bolster. A

The means for supporting the semi-elliptic springs from the side frames of the truck,

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which is the subject-matter of my present invention, will now be described.

It is one of the objects of the invention recited in the 'before-mentioned application to extend the spring-base or resilient support for the bolster as close to the axle-box pedestals as convenient in order to provide a more thorough support for the car on the truck than is had where the spring-support is centered about the bolster in the usual form of truck.

I form links or hangers for the semi-elliptic springs as follows, which construction involves the employment of an articulated su pporting-link having a universal or ball-andsocket connection with the side bar and supporting a compressible or link spring. Adjacent the yokes or pedestals a perpendicularly-disposed aperture is formed in enlargements 2l in the side bars, the aperture comprisinga circular depression or socket 22 and aconical opening 23 therefrom leading out from the bottom of the side bar. The depression 22 forms (with the device hereinafter described) one element of the ball-andsocket joint, the other element consisting of the semispherical head or ball 24, seated in the recess or socket 22 in the side bar and extending into the aperture 23 in the side bar, thus forming a ball-and-socket connection with the side bar for the depending link 25.

The link embodies the upper and lower bolts 2u 27, the upper bolt or link-section being provided with an exterior screw-threaded enlargement 2S, on which the ball 24 is movable, thus forming an adjustable mem ber for the link and providing a ball-and-socket connection between the bolt 26 and the side bar, the bolt 2G passing through the aperture 23, the head or bolt 2t being movable on or detachable from the bolt 26 in order to allow adjustment for wear and assembling parts. The lower end of the bolt 26 is provided with an enlargement or eye 29, through which eX- tends a pin 30, lying longitudinally. The upper end of the lower bolt 27 is in the form of an eyebolt and is provided with a bifurcated knuckle 31, formed by the parallel arms 32, which embrace the eye 29, the armsbeing pierced by the pin 30, thus pivotally secu ring the upper and lower link-sections together and allowing, as illustrated in Fig. 3, of the transverse swing of the lower section of the link without inclining it in relation to the upper link-section, the upper section of the link taking the inclination on its ball-and-socket connection with the side bar. The lower portion of the bolt 27 is eXteriorly threaded at 33 and provided with a movable nut 34E, and on this nut is seated a cup 35, on which cup rests spiral springs 3G, which springs supporta casting 37, apertured to allow of the bolt 27 passing therethrough, the casting having a depending lug 38 entering into the interposed spring 36, and on top of the casting or cap 37 is provided the seat 39 for the ends 40 of the leaves on the semi-elliptic springs 17, through which the lower bolt `27 passes, said leaves abutting against the bottom of the knuckle 3l, which latter acts as a stop to limit the upward movement of the spiral springs Safety Cotter-pins al 42`can be employed in the usual way.

In this way a ball-and-socket or universal supporting-link is had from the side bar, which link is articulated to allow of a bodily transverse swing of the lower portion ot' the link perpendicularly (to a certain extent) to the side bar, which link suspension also embodies the interposed link-springs for supporting the semi-elliptictsprings on the links, allowing the bolster and semi-elliptic springs to swing transversely of the truck in unison, and at the same time allowing of a slight longitudinal movementof the bolster and springs and links, the latter being limited only by the transoms, as shown in Fig. 2.

The springs (on the links) 'besides resilientlysupporting the semi-elliptic springs offer a resilient check to the upward movement of one end ot' the truck during the application of the brake-shoes to the car-w heels and otherwise materially modifying the action of the truck and car in relation to each other.

The spread of the bolster across the truck is preferably had to such an extent that the links are slightly splayed outwardly, as illustrated in Fig. 2, in order to afford a firm base of support for the bolster and prevent the links swinging over their normal center to too great an extent.

Having described my invention, I claiml. The combination in a car-truck, voi" the longitudinally-disposed semi-elliptic springs, a transverse bolster supported on said springs,

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links depending from the side frames `ol the l truck, said links being articulated between their ends, a spring on each of the lower members of said links, the ends of the semi-elliptic springs resting on said latter springs, substantially as described.

2. The combination in a car-truck, of the side frames, links pendent from the side frames, said links comprising aAball-a-ndsocket connection with the side frame, and an articulation intermediate of their ends, a spring supported on the memberof said links below the articulation, semi-elliptic springs IIO longitudinally disposed below the side bars, l

the ends of said springs resting on the linksprings, and a bolster secured to said semielliptic springs and tying them together transversely, substantially as described.

3. In a car-truck the combination with the side bar, of the bolt articulated between its ends, a seat on the lower member, a spring on the said seat, a cap on said spring, and another spring on said cap, substantially as described.

4E. In a car-truck the combination with the side bar, of the upper link-bolt suspended from the side bar, the lower link-bolt movably connected with the upper link, a nut on.

the lower link, a seat on the nut, and spring on the seat about the bolt, a seat on the spring, and a leaf-spring on the latter seat,

substantially. as described.

5. In a car-truck the combination with the side bar, of the upper link-bolt suspended from said bar, an eye on the bolt and a pin passing through the eye, the lower link-bolt, a knuckle thereon'engaging the pin in the upper bolt, a nut on the lower bolt, a seat on the nut, a spring on the seat, a recessed seat on said spring below said knuckle, and a leafspring in said recess, substantially as described.

6. The combination with the side frames of the car-truck, of the links pendent therefrom, a bolster'supported by said links, an aperture in the side bar, a ball movable in said'aperture, the upper ends of said links being exteriorly screw-threaded, and an interiorly-threaded aperture in said ball to receive the threaded end of said links, substantially as described. y

7. In a car-truck, theconibination with the side frames, of a bolster, `articulated links pivotally suspended from the side frames, springs on the links, and a connection extending between the links resting on said springs and supporting the bolster, subst-antially as described.

8. In a car-truck, the combination with the side frames, of links articulated between their ends and pivotally suspended from the side frames, springs on said links below the articulation, a connection extending between the links and resting on said springs at a point below said articulation, and a cross-bolster resting on said connection, substantially as described.

9. In a car-truck, the combination with the side frames, of links articulated between their ends and pivotally suspended from theside frames,l spiral springs about the lower element of said links, cups on thelower element supporting said springs, a longitudinal connection extending between the links guided by said lower element, and resting on said springs, and a bolster resting on said connection, substantially as described.

10. In a car-truck, the combination with the side frames, of the two-part links depending in pairs from the side frames, said links cornprising a lower element having a bifurcated enlargement at the upper end and a cup secured at the lower end, and an upper element pivotally secured to the side frame at the upper and in the bifurcation at the lower end, spiral springs about the lower element resting on said cup, a connection extending between the links and loosely engaging the lower element between the top of said spring and the bottom of the enlargement, and a bolster resting on said connections, substantially as described.

11. In a car-truck, the combination with the 'side frames, of the upper link-bolts pivoted to said frames, lower link-bolts having eyes lto which the upper bolts are pivoted, connections through which the lower bolts extend, springs on the lower bolts, below said connections, whereby the connections are elastically supported, and a car-supporting bolster on said connections, substantially as described.

12. In-a car-truck, the combination with the side frames, of the upper link-bolts pivoted to said'frames, lower bolts having eyes to Whichthe upper bolts are pivoted, connections through which the lower bolts extend, spiral springs on the lower bolts below said connections, cups against which the spiral springs press, and a car-supporting bolster suitably supported onsaid connections, substantially as described.

13. In a car-truck, the combination with the side frames, of the links comprising bolts pivoted between their ends, said links being pivotally suspended from the side frames, longitudinally-disposed semi-elliptic springsy secured to the lower end of said bolts,a crossbolster resting on said springs, and further springs included in the link suspension of said semi-elliptic springs, substantially as described.

14. In a car-truck, the combination with the side frames, of the cross-bolster suspended below the side frames by semi-elliptic springs and pivotal links, said lin ks comprising a plurality of sections pivotally secured together, and further springs combined with said links to elastically suspend said semi elliptic springs from the side frames, substantially as described.

15. In a car-truck, the combination with the side frames, ofthe cross-bolstersuspended bei Y low the side frames bysemi-elliptic springs and articulated and pivotal links, said links comprising a plurality off-sections pivotally secured together, and spiral springs about and combined with said links to elastically suspend said semi-elliptic springs from the side frames, substantially as described.

16. The combination with the Aside bar havd ing a conical opening therein, a bolt, a thread formed on the bolt, aball on the bolt engaging the thread, a seat in the opening for the IIO ball, a spring supported by the bolt, and a bolster supported on said spring through an intermediate connection, substantially as described.

17. The combination in a car-truck having an upper chord, of, the longitudinally-disposed semi-elliptic springs, a transverse bolster supported upon said springs, links depending from and flexibly supported on said upper chord and passing through enlargedV apertures therein, said links being articulated between their ends, the ends of the semi-elliptic springs being supported upon the lower articulation of said links, substantially as described.

18. In acar-truck, the combination with the side frames, of upper link-sections 26 pivoted to said frames, eyebolts 27 to which the links are pivoted,semielliptic springs through which the eyebolts extend, springs on the eyebnlts below said semi-elliptic springs whereby said semi-elliptic springs are elastioally supported, and a carsupportng bolster supported by the said semi-elliptic springs, substantially as described.

19. In a cnr-truck, the combination with the side frames, of link-sections 26 pivoted to said frames, eyebolts 27 to lwhich' the links 1o are pivoted, semi-elliptic springs through which the eyebolts extend, spiral springs 36 on the eyebolts below said semi-elliptic springs, cup-shaped Washers against which the spiral springs press, and Si oar-supporting bolster suitably supported on said semielliptio springs, substantiallyT as described.

Signed in the city and county of Philadelphie, State of Pennsylvania, this 21st day of October, 1897.

GEORGE MARTIN BRILL.

Witnesses:

HENRY C. ESLING, EDW. P. RAWLE. 

